| Countries of the World Quiz | 0 | - | 5.00 | 47,914,734 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,967 |
| NATO Countries | 0 | - | 4.98 | 283,647 |
| EU Countries Quiz | 0 | - | 4.99 | 278,194 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,586 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,251 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,548 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,850 |
| Countries with NO Military | 0 | - | 4.97 | 63,485 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,130 |
| Landlocked Countries | 0 | - | 4.99 | 426,439 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,776 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,353 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,201 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,183 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,976 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,199 |
| Buddhist Countries | 0 | - | 4.96 | 145,154 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,065 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,768 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,396 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,513 |
| Himalayan Countries | 0 | - | 4.93 | 140,453 |
| Andean Countries | 0 | - | 4.94 | 85,592 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,736 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,185 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,298 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,538 |
| Danube Countries | 0 | - | 4.97 | 72,464 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,672 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,895 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,244 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,719 |
| European Landlocked Countries | 0 | - | 4.99 | 147,660 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,386 |
| Countries with the Most Species | 0 | - | 4.99 | 103,599 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,493 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,788 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,910 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,871 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,612 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,063 |
| Countries in the Alps | 0 | - | 4.87 | 118,846 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,766 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,977 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,006 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,080 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,026 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,311 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,911 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,459 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,224 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,907 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,774 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,598 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,841 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,939 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,967 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,653 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,319 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,733 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,916 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,273 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,547 |
| Largest Countries By Category | 0 | - | 4.97 | 158,941 |
| Countries by Countries | 0 | - | 4.96 | 63,699 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,143 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,914 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,822 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,952 |
| Island Countries | 0 | - | 4.99 | 712,728 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,268 |
| Northernmost Countries | 0 | - | 4.99 | 364,239 |
| Countries of South America | 0 | - | 5.00 | 933,307 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,292 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,761 |
| "Land" Countries | 0 | - | 4.98 | 338,522 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,679 |
| Countries that Start with B | 0 | - | 4.95 | 2,307,389 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,183 |
| Countries that Start with D | 0 | - | 4.96 | 716,920 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,669 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,154 |
| Countries that Start with H | 0 | - | 4.96 | 609,929 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,030 |
| Countries that Start with J | 0 | - | 4.98 | 607,325 |
| Countries that Start with K | 0 | - | 4.97 | 821,131 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,285 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,353 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,490 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,796 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,269 |
| Countries that Start with U | 0 | - | 4.97 | 908,759 |
| Countries that Start with V | 0 | - | 4.98 | 612,219 |
| Countries that Start with F | 0 | - | 4.83 | 621,580 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,768 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,492 |
| Orthodox Countries | 0 | - | 4.92 | 132,861 |
| Richest Island Countries | 0 | - | 4.85 | 101,268 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,042 |
| Monarchies of Europe | 0 | - | 4.90 | 98,929 |
| Monarchies of Asia | 0 | - | 4.97 | 71,535 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,189 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,314 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,253 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,236 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,531 |
| Countries by Oil Consumption | 0 | - | 4.96 | 121,301 |
| Largest Economies in 2050 | 0 | - | 4.88 | 111,962 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,110 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,039 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,131 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,599 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,214 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,143 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,297 |
| Countries with Megacities | 0 | - | 4.99 | 267,403 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,972 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,219 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,297 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,323 |
| Countries by Official Language | 0 | - | 4.95 | 196,096 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,757 |
| Countries in their Native Language | 0 | - | 4.99 | 199,825 |
| Independence from Whom | 0 | - | 4.99 | 213,197 |
| Subdivisions by Country | 0 | - | 4.87 | 50,640 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,549 |
| Megadiverse Countries | 0 | - | 4.96 | 142,380 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,019 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,553 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,744 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,235 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,340 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,883 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,171 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,588 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,114 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,273 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,624 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,422 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,462 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,171 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,884 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,105 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,318 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,751 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,359 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,149 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,610 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,708 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,481 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,595 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,786 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,717 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,832 |
| Widest Countries East to West | 0 | - | 4.92 | 130,773 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,613 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,298 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,533 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,093 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,031 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,524 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,515 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,905 |
| Countries with Double Letters | 0 | - | 4.96 | 97,203 |
| Countries that End in N | 0 | - | 4.95 | 172,224 |
| Countries with Five Letters | 0 | - | 4.96 | 284,152 |
| Countries with Six Letters | 0 | - | 4.94 | 214,614 |
| Countries with W | 0 | - | 4.96 | 161,040 |
| Countries with Z | 0 | - | 4.98 | 292,582 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,376 |
| Countries That End in U | 0 | - | 4.95 | 121,240 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,186 |
| Countries that End in O | 0 | - | 4.92 | 160,260 |
| Countries that End in R | 0 | - | 4.87 | 119,213 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,976 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,952 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,218 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,874 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,803 |
| Countries That End in Y | 0 | - | 4.91 | 186,110 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,527 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,323 |
| Countries that End in I | 0 | - | 4.94 | 135,351 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,688 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,087 |
| Countries That End in NIA | 0 | - | 4.92 | 110,094 |
| Countries That End in BIA | 0 | - | 4.93 | 149,637 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,724 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,809 |
| Countries That End in RIA | 0 | - | 4.93 | 127,087 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,442 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,723 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,253 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,702 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,249 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,837 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,362 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,554 |
